How Fish Reproduce

How Fish Have Evolved To Become Suited To Its Environment

BIO 101: Principles of Biology

University of Phoenix

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Fish are aquatic organisms that have several features that allow them to survive in their environment. All fish have fins, which help them keep going in a specific direction by guiding them and providing thrust. Their bodies are streamlined to help reduce friction as they swim through the water. Their skeleton is important for this, too. The skeleton provides the framework for the outer structures and the muscles provide the power that allows the fins to thrust them through the water. The hindbrain is responsible for sending the signals for movement and keeping the fish balanced. The swim bladder is also important for...